Ah, Roddenberry's ideas of humanity being so pure and perfect that they can resist any temptation and have no flaws. Like when Riker grants Geordi vision, he looks around, hits on Tasha, and then he just says no without any trouble at all. Even says "please" when asking for his blindness back! It's too absurd, and doesn't make an interesting story.

yeah, that's the second problem with this episode, apart from the moral. The senior crew is shown to be absurdly incorruptible and pure.